Worksheet 422 · Skill 6
Course to steer
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You are at 191°T, 0.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.5 kn. The current sets 300°T at 1.7 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 353°T, 1.8 nm from Heron Point Light, bound for Green can "1". Your speed through the water is 6.8 kn. The current sets 009°T at 0.8 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 033°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.5 kn. The current sets 002°T at 1.5 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 072°T, 3.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.6 kn. The current sets 092°T at 0.7 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 075°T, 2.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.6 kn. The current sets 055°T at 1.1 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 221°T, 2.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.1 kn. The current sets 247°T at 0.9 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 004°T, 1.4 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 6.2 kn. The current sets 292°T at 1.1 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 026°T, 2.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.0 kn. The current sets 010°T at 2.5 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 269 °T Speed over the ground: 13.0 kn Time to the mark: 24 min | No. 422001 (worked solution) |
| 2 | Course to steer: 108 °T Speed over the ground: 6.7 kn Time to the mark: 18 min | No. 422002 (worked solution) |
| 3 | Course to steer: 242 °T Speed over the ground: 9.8 kn Time to the mark: 43 min | No. 422003 (worked solution) |
| 4 | Course to steer: 175 °T Speed over the ground: 6.7 kn Time to the mark: 27 min | No. 422004 (worked solution) |
| 5 | Course to steer: 143 °T Speed over the ground: 11.7 kn Time to the mark: 14 min | No. 422005 (worked solution) |
| 6 | Course to steer: 301 °T Speed over the ground: 11.6 kn Time to the mark: 19 min | No. 422006 (worked solution) |
| 7 | Course to steer: 075 °T Speed over the ground: 5.4 kn Time to the mark: 44 min | No. 422007 (worked solution) |
| 8 | Course to steer: 230 °T Speed over the ground: 6.3 kn Time to the mark: 71 min | No. 422008 (worked solution) |